Work-support for metallic-fastening machines.



APPLIOATION FILED MAY 29,1906.

Patented Jan.4, 1910.

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' APPLICATION FILED MAY 29, 1906. r 945,342 Patentedflan. 4, 1910.

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M; 1). PHELAN. WORK -SUPPORT FOR METALLIC FASTENING MACHINES.APPLIGATION FILED MAIZQ, 1906. 945,342. Patented Jan. 4,1910. 6SHEET$-SHEET 3.

I v M. D. PHELAN.

WORK SUPPORT 'FoR METALLIG FASTENING MACHINES.

APPLICATION IILED MAY 29, 1906.

6 SHEETS-SHEET 4.

Inventor. lyerlfinfifizelm Patented'Jan. 4, 1910.

' M. D. PHELAN.

WORK SUPPORT FOR METALLIC FASTENING MACHINES.

APPLICATION FILED MAY 29, 1906.

i 945,;32, Patented Jan. 4,1910.

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. v Inventor; QZW'M JXQW HerZZvnIZP/zelan r v Am ,3.

M. D. PHELAN. WORK SUPPORT FOR METALLIC FASTENING MACHINES. APPLICATIONFILED MAY 29, 1906.

6 SHBETS-SHEET 6.

' 945,342, Patented Jan.4,1 9 10.

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Inventor: fievzn flP/zelam MERTON n.

' MENTS, T0 THOMAS PHELAN, 0F BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNEASSIGN- G. PLANT, 0F BOSTON, MASSACHUSETTS.

WORK-SUPPORT FOR METALLIC-FASTENINGMACHINES.

Massachusetts, have invented an Improvemeat in ork-Supports forMetalhe-Fas' ten ing Machines, of which the following description, inconnection with the accompanying drawings, is a specification, likecharacters on the drawings representing like parts.

This invention relates to metallic fasten .ing machines employed in themanufacture of boots and shoes. In machines of this class as heretoforeconstructed, notably in connection with what are known as loose nailersand sluggers, it has been common to provide a worlc supporting horn withmeans for depressing the same slightly and-periodically between thedriving of successive fastenings, in order to free the work slightly forthe more ready feeding of the same, said horn being pressed upwardyieldinglyjust prior to the drivingof each fastening, so as port for thework to resist the blow. While this slight periodical depression of thehorn is su'liicientto permit the feeding of the" work, after the latterhas been placed in po sition on the horn, and while the machine, whenstopped, after having driven the last fastening, would of course leavethe horn slightly depressed, yet this slight depression has beeninsufficient to enable the work to be freely removed from the horn orplaced in position thereon. Because of this it was first customary toprovide the horn with a special treadleby which it could be abnormally-depressed to permit the work'to be positioned and again abnormallydepressed for the removal of the work. a separate operation on the partof the operative, and led to the introduction of means for automaticallyproviding for abnormal depression of the horn aft-er the last fastenerhad been driven and just prior to the stop ping of the machine. Toaccomplish this the starting and stopping mechanism was.

connected. with the horn depressing mechanism, so that when the startingandstopping mechanism was operated or released to stop the machine, thehorn would by the same movement be abnormally depressed to permit theremoval. of t-hework. Again, when the. starting and stopping mechanismwas Specification of Letters .Eatent.

Application filed May 29,

to furnish a sufficient sup- This required Patented Jan. it, 191%.

1906. Serial No. 319,262.

operated to start the machine, it would at the same time restore thehorn to its elevated position, thereafter to be periodically de pressedbut slightly to permit necessary feeding of the work. The starting andstopp ng mechanisms of machines of this type the main shaft of themachine in such manner that-they can only be operated to stop themachine at the end ofa complete revolu tion of said main shaft, so as toinsure complete driving of the last fastening,and, of course, if thehorn depressing .mechanism be connected with the starting and stoppingmechanism, or with the main shaft, it likewise we vld be abnormallydepressed only at the close of the last revolution of the main shaft andafter the lastfastening had been driven. Coupling the horn depressingmechanism to the starting and stopping mechanism or to the main shaft ofthe machine, is, however, more objectionable in that the horn isinvariably depressed at a given time, which, in some lines of work, islater than need be, and in other lines of work some what earlier thanshould be forthe best results. 1

My invention aims to provide a novel and improved mechanism fordepressing the work support which shall be wholly free and independentofboth the starting and shaft of the machine, yet one which while the lastfastening is driven, will at the same time permit a the Work support tobe depressed immediately after said fastening has been driven or at theend of any desired delayed interval thereafter.

In machines of this character where periodical depression of the worksupport or horn for feeding is uniform, it is necessary frequently toadjust the level of the work support, according to the average thicknessof the work for-the time being to be nailed, and for this purpose it hasbeen customary to provide a wheel on lever adjustment at the base of thehorn which the operative first adiusts and then startsthe machine. Allthis requires time and my invention therefore sins 7th provide automaticmeans for adjustin the work support level to the thickness of the workplace thereon and without in any manner interfering with the areordinarily coupled to or controlled by stopping mechanism and-also ofthe main operation of the periodical de ressing means for said worksupport or the nal depressing means to depress the support for removalof the Work.

My invention further contemplates the provision of a novel form of worksupport comprising in the embodiment of my invention herein selected forillustration an oscillatory jack having a new and peculiar movement, so'that the work may be moved toward and from a work or operating deviceof the machine, without unnecessary tipping and to maintain the worksupported on said jack in an approximately horizontal position.

All of the above, however, with other features of my invention, will bebest understood from a description of a machine illustrating oneembodiment of my invention and which is shown in the accompanyingdrawings.

In the drawings-Figure 1, in side elevation, partially broken away,illustrates a metallic fastening machine of the slugger type equippedwith devices illustrating my invention; Fig. 2, an enlarged view of thehead looking from the opposite side of the machine (Fig. 1), a shoebeing shown in section in position upon the horn; Fig. 3 is an enlargedsectional view of the machine column, horn and horn supportingmechanism; Figs. 4 and 5-, sectional details on a still larger scaleillustrating the operation of the horn mechanism; Figs. 6 and 7,sectional details res ectively on the dotted lines 6 -6 and 7 (Figs. 4and 5) Fig. 8 is a partial sectional view and elevation showing a novelform of jack made in accordance with my invention; Fig. 9, a left.- handor front view of the parts shown in Fig. 8; and, Fig. 10, a partiallysectional view on the line 10-10, Fig. 8.

In the particular embodiment of my invention selected for illustrationherein and shown in the drawings, referring first to Figs. 1 and 2, themachine column A, the machine head'A, and the various working partsthereof may be of any desired type or construction, the same as hereinshown illustrating a machine of the general type illustrated by U. S.Letters Patent No. 563,478, to which reference may be had.

The machine is operated (see Fig. 1) from a driving pulley, 1, fast on acountershaft 2, journaled in the column and provided with a secondpulley "3, connected by a belt 4, with an overhead pulley 5, on the mainshaft 6, of the machine. This pulley 5, in accordance with the usualpractice in vmachines of this type, is adapted to be connected with itssaid shaft through the medium of suitable clutch mechanism under alum.

- the control of a rising and falling wedge 7,

which, when raised, renders said clutch effective to drive its saidshaft and the machine; and when dropped, renders it insame herein,further than to say that said I wedge is controlled by a rod 8, leadingdownward to and connected with the starting and stopping treadle 9 seeFig. '8), fulcrumed at 10. in a suitable bracket provided therefor inthe base of the column and with its tread end reaching outward from andat the front of said base. A spring 11, encircling the wedge rod 8,-near its upper end, tends to depress the said rod and lift the treadle,so as to render the said clutch normally inactive, said wedge being heldin raised position to render the clutch active against the action ofthis spring by depression of said treadle.

Referring now to Fig. 3: a work support or holder is provided, whichmaybe of any suitable or desired shape and construction. As hereinshown, said work support comprises a horn 12, mounted adjustably uponthe upper end of a supporting rod 13, the v the column base. Thissupporting rod (see Fig. 5) is also made tubular at its lower end, toreceive the sliding pin 14*, acted upon from above by a spring 15, thattends always to depress said pin. Immediately below said pin and actedupon constantly thereby is a supporting screw 16, in threadlower end ofsaid supporting rod. This screw has fast on its lower end a head 18,which (see Fig. 7) receives in a circular groove thereof thediametrically opposite pins or trunnions ,19, in the forked end of atoggle link 20 so that said head-18 and connected screw 16 may rotatetogether relative to the forked end of the toggle link 20, when freefrom the locking device 46', as will hereinafter appear. This togglelink is crooked, as shown, and at its lower end is jointed at. 21, to acooperating toggle link 22, in turn jointed at 23, to the upper end of atoggle supporting rod 24, mounted to slide vertically in bearings in thecolumn. At its lower end (see Fig. 1) said toggle column base. The innerend of said lever 25, 1s ointed to a rod 26, which, through themeasuring mechanism 27 is connected,

bya rod 28, with a usual cam 29 on the main shaft of the machine. Thiscam operates in usual manner to lift the said rod to depress the hornperiodically between the driving of successive fastenings, and, togetherwith the measuring device 27, are of Such well-known construction as torequire no further detailed description herein.

supporting rod 24, is jointed to a lever 25,- fulcrumed at 26, in asuitable bracket in the 100 ed engagement with a nut 17, fast in the YSuch a mechanism was first shown in U. S. Letters Patent to L. Goddu No.265,227 dated September 26, 1882, to which reference may be had, ifdesired. The periphcry of the cam 29, in the 'iresent instance and inaccordance with the usual custom, serves as a brake wheel for a'brakeband (Figs. 1-3), controlled by a lever 31, connected with the wedge T;so that wl'ienever the wedge is moved to release the clutch, the brakeis at the same time applied to arrest the machine. Surrounding thetoggle rod 24, and acting against an adjustable nut thereon, is alifting spring 32, which tends normally to lift said work support orhorn and work thereon to the machine.

To depress the horn abnormally at the end of a nailing operation and forremoval of the work therefrom, the toggle BO-22 is broken or collapsed,and the horn is again raised to normal position by straightening of thetoggle. For the purpose of breaking and straightening this toggle, oneof the links thereof, 22 (see Figs. 4t and 5) has jointed to it at 33, arod. 3e, having a shoulder end 35, upon the threaded extremity of whichare lock nuts 36. Surrounding this shoulder end of said rod, is the endof an upright arm 37, of a bell-crank treadle lever, fulcrumed at 10(Fig. 3), coincident with the starting and stopping treadle and havingits tread-1e 38, reaching forward close beside the starting and stoppingtreadle.

Encircling the reduced portion of the toggle operating rod 84 (see Fig.5) is a washer 39, which is normally pressed against the shoulder 35, bya spring 40, encircling the rod and seated at its front end againstsuitable adjusting nuts 41. The distance between said'washer 39 whenseated against said shoulder and said nuts 36, is greater than thelength of the end of the treadle lever 37, that encircles that end ofthe rod, so that a lost motion is provided in both directions ofmovement of said lever before its motion can be communicated to the rod.

The treadle lever37 is held normally in the rearmost position by aspring 42, connecting the same with the column (Fig. Obviousl if theborn or work supporting treadld 38, be depressed, its upright arm 3?,will, through the washer 3t) and spring 40, operate to straighten thetoggle dud lift the work support. Conversely, if said treadle bereleased, its spring 42, will draw it to its original position, causingthe end of said treadle arm 37, by the nuts 36 on the toggle rod, tomove said toggle to collapse the toggle and drop the work support. Thelost motion between the end of said treadle lever and the washer on oneside, and the nuts at the opposite side, is provided for the pur pose ofcausing a momentary lag or delayed action in the response of the toggleto the movement of the treadle lever, so that after the said treadle isreleased, a momentary delay occurs before the work support responds anddrops.

Inasmuch these machines are operated usually at from 250 to 850revolutions per minute, which means the driving of as many' fasteningspe1',minute, it will be clear that the interval required for the makingand driving of any single fastening, is approximatelyw; of a second orless, so that with the machine in operation and with the operativeholding both the starting and stopping and the work supporting treadledepressed, as he able to do with one foot, by reason of their closeproximity one to the other, when the end of the work is reached and attheinoment of driving the last fastening, the operative releases bothtreadles, the starting and stopping treadle being held against liftingmovement: until. the main shaft of the machine has completed its.revolution and driven the last fastening, when it is automaticallyraised to stop the machine. The

work supporting treadle, however, while released at the same time as thestarting and stopping treadle, is in no manner connected with thestarting and stopping treadle nor with the main shaft nor any other partof the machine; consequently, so far as those parts are concerned itswork supporting treadle might imn'iediately lift, and, unless means wereprovided to prevent, cause collapse of the toggle and depression of thework support perhaps before the last fastening had been completelydriven. This premature depression of the work support or horn is,however, prevented in the present instance by the lost. motion firstreferred to. between the treadle lever and the toggle rod. which issufiicient to cause a depression of the wor support to lag behind thereleaseof the treadle long enough to insure complete driving of the lastfastening. This is of advantage as compared with earlier constructionswhere said treadle has been tied or connected to the starting andstopping mechanisms of the machine, because it per mits of considerablelatitude of adjustment,

permits release of the work earlier than would be possible were the worksupport connected to and responsive only with the starting and stoppingmechanism. On the other hand, with certain types of clutch mechanisn'iit is desirable to release the same earlier in the period of the lastrotation of the main shaft than it would be desirable to release thework support, and my improved mechanism permits this to be done, becausethedepression of said work support may be timed to a. nicety.

Should the lag or delayed action of the work support as compared withthe movement of its treadle, be desired to be greater than isconveniently possible, by means of the lost motion alone, 1 haveprovided the treadle lever wit h a retarding device, which (see Fig. 3)1n its preferred .form, 'as illustrated, is in the shape of a dash-pot43, fast to the machine column and having its piston connected with saidlever, This dashpot, by means of its escape valve 44, may be ad ustedtoflgive any desired period of retardation to the treadle lever andthereby to" driving shaft, a work support having con nections with thedriving shaft for feeding,

a starting and stopping treadle, and a t-readle independent of thestarting and stopping treadle for controlling the final depression ofthe work support and any means whatsoever for causing it to lag in itsresponse to release of the treadle.

Referring, now, to Figs. 3, 4, and 5: I will describe the means forautomatically measuring the lift of the born to the thickness of thework independently of any measuring device connected with the periodicaldepressing m'echanism. Fast upon the lower end of the supporting screw16 and below the toggle supporting head 18, is a finely toothed wheel45, and opposite this wheel the toggle link 20 is provided with a springpressed locking device 46 (see Fig. 6). The spring 47 behind thislocking device presses the latter normally outward. to a positionlimited by the stop nuts 48. When the toggle is collapsed with its linksin the position shown inFigs. 1 and 3, the spring-pressed lockin device'46 is removed from the tooth periphery of said wheel 45. If new thetoggle be straightened, to lift the horn, it

will operate to lift the screw 16 and the said supporting rod 13 and itswork support, and the-frictional resistance to the lifting of saidsupport being less than that. opposing the rotation of the screw in itsnut 1 7 the whole structure, screw, nut, work supportand 'all, will belifted as a unit until the work meets the presser-foot' of the machine.When, however, the lifting of the-work is prevented by contact thereofwith the said presserfoot, further movement of the toggle being unableto lift the work support but continuing to lift the screw, will causethe screw to turn in the supporting rod 13, until the toggle reaches itsstraightened position, just prior to which the spring-pressed lockingdevice 46, will en age the toothed surface of the wheel 45 on the screwand will lock the said screw against further rotation. \Vhen, now, theperiodical work support depressing mechanism operates, it will operatethe toggle, toothed wheel, screw and work support type of meanshereinscrew to or1gmal position.

said wheel 45,

as a unit, and just as it would operate the same if the toggle and thescrew were omitted. If the work is exceptionally thick, then the liftingof the work support will be stopped earlier in its movement and thebalance of the movement taken up in turning the screw will be greater.If'the work is thin, the screw and the work support or horn will belifted rapidly together, the work engages the presser-foot, when furthermovement of the work support will be arrested and the screw compelled toturn until as before. Thus the screw measuring device described,constitutes one form of measuring devlce for the work support whenoperatedby the treadle to measure the work, so that the conditions ofoperation become uniform, whatever be the thickness of the work. Thisobviates any necessity for the operative manually adjusting theworkfsupport for different styles or kinds of work, as is now thecustom, because said work support automatically measures and adjustsitself thereto, saving much time to the operative and increasing hisoutput and wages.

The teeth on the locking wheel 45, are shown as V-shaped, andtheco-action of the correspondingly shaped teeth of the springpressedlocking device thereof, is thereforenecessarily a frictional action orengagement, so that while the device is specifically one employing alocking device, to lock the work support in its measured condition orposition, yet it is, broadly considered, one form of frictionalmeasuring means and my invention comprehends the frictional measuringmeans broadly without limitation of. shown and. described. The collapseof the toggle first releases the measuringlock, and a continuation ofits movement depressing movement always permitting the As herein shown(see Figs. 4 and 6), the spring-pressedlocking device 46, is adjustabletoward and from said toothed wheel 45. By this arrangement said lockingdevice is caused to engage with the toothed wheel prior to thestraighten ng of the toggle links, arresting the rotat on of and causinga depress on-of the supporting rod 24,. against the tension of itsspring 32 during of said togg e. Since the pawl or locking device 46, isadjustable, it will be seen that the pressure mamtainedby said spring32, to

' cause the liftlng of the work support against the work, can beadjusted or varied to suit the conditions of the work or to cause heavyor light pressure with the same thickness of stock," as may be desired.

In the foregoing description the mechanism involving parts of myinvention has been shown in connection with a form of work support thatis known in the trade as depresses the work support, the

the final straightening e restored by its spring 15, to its 1 upon whichthe shoe is laced without any last contained in the s cc. In manyinstances, however, particularly in the better grades of work, it isdesirable, to maintain the last in the shoe through all possibleprocesses of shoe making, as the last always maintains the shoe in itsdesired and proper shape. I therefore desire it to be understood that bythe "term work support or work holder,as used in this description, ismeant any suitable device on which work'can be supported or retained, myinvention ndt locing limited to the employment of a shoe support, as,for example, the horn or the jack now to be described.-

To equip a metallic fastening machine for operating upon shoescontaining lasts, a work support or holder known as a jack, is employed,the same being provided with a spindle, adapted to enter the usualspindle hole in the heel of a last.

Tn rounding theheel of a shoe, because of the irregular shapes and sizesof heels, it is necessary for the spindle end of the jack to possess aswinging movement of considerable range and radius, but it has beenfound that if a jack be pivoted at a convenient point to permit such amovement, the swinging of the jack produces such inequality thereof asis detrimental to the best work.

In Figs. 8, 9 and 10, I have shown a jack i construction, which Ibelieve to be entirely novel and/to possess great merit.- Referring tosaid figures, the supporting rod 13 and its mount are and may be as inthe construction described in connectionwvith the preceding figures.Olamped to the upper end of said rod 13 and in place of the horn (Fig.1),is the drop hanger 50, shaped to drop down outside the neck 14, to aslow a point as is convenient and practicable. P t its lower end saidhanger is socketed to receive the vertical stem 51, of a head 52, whichmay be raised and lowered for hand adjustment by means of a nut 53,that-surrounds the said stem and engages a threaded portion thereof (seeFig. 19). A handle for operating the nut is provlded with afinger-controlled locking device 54, adapted to engage a ratchet surface55, on the .socketed end of the hanger for retaining the nut in'anydesired adjusted position. The head 52, is provided with a transversepin 56, upon which is pivoted an auxiliary head 57, and to thisauxiliary head are pivoted about axes substantially perpendicular to theaxis of the pin 56, two nearly parallel links 58 (see Figs. 9 and 10).At their upper ends these links are jointed to the jack proper 59',carrying in turn at its upper end a usual spring-controlled and? movablepin or post (30, adapted, as indicated, to enter the usual hole in thelast carrying a shoe the heel of which is to be nailed.

It \v1ll be noticed by reference to Fig. 10,

that the median lines of the two links 58, are

right into the position shown in Fig. 9, it does not move in a perfectlyparallel three-- tion, nor does it maintain truly perpendicularposition, but is given a gradual tipping movement at its upper endtoward the direction of movement; so that the effect is as if the jackwere pivoted at a point at or below the floor level, for example, Bythis arrangement the last and said ack are moved in a curvilinear pathhaving a radius of curvature exceeding'or greater than the length of thejack or the distance between its upper end and said head 52. Th sconstruction, furthermore, provides for or gives the free movement of apivotally supported jack; all the eifectof a low plvot and long radiusto keep the work properly positioned relative to the driving mechanismas the work is shifted through a considerable range, coupled with arelatively compact mechanism concentrated around the neck de; scribed.As the-jack is swung in the'opposite direction, an opposite tipping movement is imparted to it. By varying the lengths of the links, the spreadof the latter and the direction of spread, it is clear that any desiredmovement may be given to the jack from a truly vertical movement andperpendicular position, and a tipping and swinging movement in anydesired direction and to any desired extent, so the work may bemaintained in an approximately horizontal position and said jacksubstantially vertical or parallel. with its central position. Betweenthe links I have herein shown a centering spring 61 (Figs. 9 and 10),which exerts but little resistance to the side swing of the links, yettends to center the latter when a last and its shoe are removed from theack.

As herein shown, referring particularly to Figs. 9 and 10, it will benoted that said spring 61, has a T-shaped head, which rests freelybetween said links 58 when the latter are in a central or normallyvertical position, but as said links are swung to one side of the shoe,the one or the other engages or presses against the T head of saidspring, so that the latter acts as a stop to prevent further movementsidewise, as Well as to return said links to their normal position.

The jack as a whole may be tipped forward toward the operative aboutthe-pivot pin 56, to facilitate positioning and removing the lasts toand from the jack. A permanent adjustment may bei'had by means of thethreaded stem to the pivot head 52, described.

This jack may be used advantageously in connection with the work supp rtmeasurin" and drop mechanisms heretofore describe or, it may be usedwith any other desired form of jack or horn support and n connectionwith any machine to which it may be applicable.

Surrounding the neck is a positioning yoke 62, forked at its outer endto straddle the threaded nut adjusting device and itself yet permits thejack to. be placed in any de-' sired radial line, to cause the swing ofthe links to be always across the front and parallel with the operativeor obliquely to him at either side, should occasion require. Theinvention disclosed, both as to each type of work support or holder, andthe treadle releasing mechanism and also as to the treadle operatedmeasuring mechanism for said work support, is applicable to manymachines of the type to which the invention relates, and the treadlereleasing and measuring mechanisms may be independently used if desired,but when arranged for combined use, present cumulative advantages thatare very desirable.

The invention economizes the time of the operative, facilitates theoperation of the machine, furnishes a convenience of adjustment which iswholly lacking in other devices of the sort while the horn or worksupport measuring means is, in so far as I know, entirely new. Myinvention, furthermore, is not limited to a shoe support in combinationwith each or all of the aforesaid depressing, measuring and retardingmechanisms, but contemplates the employment of any type of work supporttherewith.

Claims.

1. In a machine of the class described, the combination of a drivingshaft, a work support, connections between the driving shaft and worksupport to operate the same for feeding, a starting and stoppingtreadle, a treadle, independent of the starting and stopping treadle,for controlling the final depression of the work support, and meansbetween the treadle and work support for de laying the starting movementof the work support for final depression after the treadle has beenmanipulated to cause said final depresslon.

2. In a machine of theclass described, a work support, and lifting anddepressing means therefor provided with lost motion connection wherebyresponse of the work support to the operation of said means is delayed,and a retarding device for said means.

3. In a machine of the class described a starting and stopping treadle,a work support controlling treadle, both arranged in juxtaposition to bedepressed and also .re-

pressing said work support, and measurin leased simultaneously, andmeans to provide delayed response of said work support with relation tothe controlling treadle when released as compared with said starting andstopping treadle when released.

4. In a machine of the class described, a-

work support, a treadle to lift thesame, connections between saidtreadle and work support providing for a lost motion between them whenthe work support has reached the limit of its movement, and meansthereafter to prevent lost motion during periods of operation of saidmachine.

. 5. In a machine of the class described, a work support, a liftertherefor, connections between the same and said work support to providefirst formovement of the two together, and then, upon resistance to thework support movement, permit further movement of said lifter, andtoothed means to lock said lifter and work support for further movementtogether.

6., In a machine of the class described, a

work support, a lift-er therefor, connections between the same and saidwork support to provide first for movement of the two to gether, andthen, upon resistance to the work support movement, permit furthermovement of said lifter, and interlocking toothed means to lock saidlifter and work support. for further movement together.

7. In a machine of the class described, a work support provided withoscillatory means to permit said support to be moved laterally, saidoscillatory means being constructed and arranged to tip the work supportabout a center noncoincident with the center of oscillation of saidmeans.

8. In a machine of the class described, a work support connected withoscillatory means for adjusting it laterally, said means constructed andarranged to produce a gradual tipping movement of the partof said worksupport that holds the work, said tipping movement being less than thefull tipping movement of the oscillatory means.

9. In a machine of the class described, 'a work holder, a support, andoscillatory means connected with said holder and support constructed andarranged to be tipped laterally and to cause the tipping of said holdera less amount than said means 10. In a machine of the class described, a

work support provided with means to permit the work to be movedlaterally in a curved path having a radius of curvature exceeding thelength of said work support in combination with means for elevating ordemeans connected therewith, said elevating or depressing means beingunder the control of an operative.

11. In a machine of the class described, a ack, a sup ort, oscillatorymeans comprising a plur ity of links connected with said support andjack for permitting the same to be moved laterally, and yielding meansjack, a movable head, and links connecting said jack and headconstructed and arranged to permit of lateral movement of said jack' tomaintain the latter in a substantially vertical position and a springfor normally maintaining said jack in central position.

14. In a machine of the class described, a jack, a movable head, anddiverging links connecting said jack and head constructed and arrangedtopermit of lateral movement of said jack to maintain the latter ina's'ubstantially vertical position.

15'. In a machine of the class described, the head 52, the auxiliaryhead 57 connected thereto, the jack 59, a-ndthe links 58 connecting theauxiliary head and jack constructed and arranged to permit the jack tobe moved laterally and to maintain it in an upright position when somoved.

16. In a machine of the class described, the head 52, the auxiliaryhead. 57 flexibly jointed thereto,.,the jack 59, the links 58 connectingthe auxiliary head and jack, and the spring 61 tending to hold the jackin central position, described.

In testimony whereof, I have signed my name to this specification, inthe presence of.

two subscribing witnesses.

MERTON 1). PI 1 E LA N. Witnesses:

WILBURT'D. JONES, SIDNEY F. SMITH.

substantially as shown and

